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    <p>So here we are, testing both:</p>
    <ul>
      <li>ppa:x2go/stable repo removal</li>
      <li>ppa:x2go/saimaa repo add<br>
      </li>
    </ul>
    <p>The removal part, first:</p>
    <p>##################<br>
      root@noc /var/log/apt # sudo apt-add-repository -r ppa:x2go/stable<br>
       Quick howto to turn your machine into an X2Go server:<br>
      <br>
      sudo apt-add-repository ppa:x2go/stable<br>
      sudo apt-get update<br>
      sudo apt-get install x2goserver x2goserver-xsession<br>
      sudo apt-get install x2gomatebindings  # if you use MATE/mubuntu<br>
      sudo apt-get install x2golxdebindings  # if you use LXDE/lubuntu<br>
      <br>
      Quick howto to install the x2goclient:<br>
      <br>
      sudo apt-add-repository ppa:x2go/stable<br>
      sudo apt-get update<br>
      sudo apt-get install x2goclient<br>
      <br>
      Enjoy!<br>
       More info: <a class="moz-txt-link-freetext" href="https://launchpad.net/~x2go/+archive/ubuntu/stable">https://launchpad.net/~x2go/+archive/ubuntu/stable</a><br>
      Press [ENTER] to continue or Ctrl-c to cancel removing it.<br>
      root@noc /var/log/apt # <br>
      ##################<br>
    </p>
    <p>Now the second part:<br>
      <br>
      ##################<br>
      root@noc /var/log/apt # sudo add-apt-repository ppa:x2go/saimaa<br>
       Bundle release of X2Go named ,,Saimaa'' (based on X2Go Server /
      Client 4 / nx-libs 3.5.0)<br>
       More info: <a class="moz-txt-link-freetext" href="https://launchpad.net/~x2go/+archive/ubuntu/saimaa">https://launchpad.net/~x2go/+archive/ubuntu/saimaa</a><br>
      Press [ENTER] to continue or Ctrl-c to cancel adding it.<br>
      <br>
      Hit:1 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a> focal InRelease<br>
      Get:2 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a> focal-updates
      InRelease [114
kB]                                                                                                                                     
       <br>
      Get:3 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a> focal-backports
      InRelease [108
kB]                                                                                                                                   
       <br>
      Get:4 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a> focal-security
      InRelease [114
kB]                                                                                                                                    
       <br>
      Hit:5 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a> focal
InRelease                                                                                                                                                           
       <br>
      Hit:6 <a class="moz-txt-link-freetext" href="http://ppa.launchpad.net/kubuntu-ppa/backports/ubuntu">http://ppa.launchpad.net/kubuntu-ppa/backports/ubuntu</a> focal
InRelease                                                                                                                                         
       <br>
      Ign:7 <a class="moz-txt-link-freetext" href="http://linux.dropbox.com/ubuntu">http://linux.dropbox.com/ubuntu</a> disco
InRelease                                                                                                                              
       <br>
      Hit:8 <a class="moz-txt-link-freetext" href="http://linux.dropbox.com/ubuntu">http://linux.dropbox.com/ubuntu</a> disco
Release                                                                                                                                     
       <br>
      Get:9 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a> focal-updates InRelease
      [114
kB]                                                                                                              
       <br>
      Ign:10 <a class="moz-txt-link-freetext" href="http://ppa.launchpad.net/x2go/saimaa/ubuntu">http://ppa.launchpad.net/x2go/saimaa/ubuntu</a> focal
InRelease                                                                                                                                 
       <br>
      Get:11 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a> focal-backports
      InRelease [108
kB]                                                                                     
       <br>
      Err:12 <a class="moz-txt-link-freetext" href="http://ppa.launchpad.net/x2go/saimaa/ubuntu">http://ppa.launchpad.net/x2go/saimaa/ubuntu</a> focal
Release                                                                                      
       <br>
        404  Not Found [IP: 2620:2d:4000:1::3e 80]<br>
      Get:13 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a> focal-updates/main
      i386 Packages [836 kB]                             <br>
      Get:14 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a> focal-updates/main
      amd64 Packages [2,611 kB]                                    <br>
      Get:15 <a class="moz-txt-link-freetext" href="http://security.ubuntu.com/ubuntu">http://security.ubuntu.com/ubuntu</a> focal-security InRelease
      [114
kB]                                                                              
       <br>
      Get:16 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a> focal-updates/main
      Translation-en [439
kB]                                                                         
       <br>
      Get:17 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a> focal-updates/main
      amd64 DEP-11 Metadata [274
kB]                                                                       
       <br>
      Get:18 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-updates/restricted amd64 Packages [1,937
      kB]                                               <br>
      Get:19 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-updates/restricted Translation-en [273
      kB]                                          <br>
      Get:20 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-updates/universe i386 Packages [730
      kB]                                                  <br>
      Get:21 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-updates/universe amd64 Packages [1,067
      kB]                                        <br>
      Get:22 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-updates/universe amd64 DEP-11 Metadata [410
      kB]                                        <br>
      Get:23 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-updates/multiverse amd64 DEP-11 Metadata [940
      B]                                           <br>
      Get:24 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-backports/main amd64 DEP-11 Metadata [7,952
      B]                                           <br>
      Get:25 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-backports/universe amd64 DEP-11 Metadata [30.5
      kB]                                           <br>
      Get:26 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-security/main amd64 Packages [2,209
      kB]                                                      <br>
      Get:27 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-security/main i386 Packages [602
      kB]                                                <br>
      Get:28 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-security/main Translation-en [356
      kB]                                             <br>
      Get:29 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-security/main amd64 DEP-11 Metadata [59.8
      kB]                                           <br>
      Get:30 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-security/restricted amd64 Packages [1,802
      kB]                                               <br>
      Get:31 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-security/restricted Translation-en [253
      kB]                                         <br>
      Get:32 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-security/universe i386 Packages [600
      kB]                                                 <br>
      Get:33 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-security/universe amd64 Packages [842
      kB]                                         <br>
      Get:34 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-security/universe Translation-en [173
      kB]                                         <br>
      Get:35 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-security/universe amd64 DEP-11 Metadata [95.4
      kB]                                        <br>
      Get:36 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a>
      focal-security/multiverse amd64 DEP-11 Metadata [940
      B]                                           <br>
      Get:37 <a class="moz-txt-link-freetext" href="https://esm.ubuntu.com/infra/ubuntu">https://esm.ubuntu.com/infra/ubuntu</a> focal-infra-security
      InRelease [7,453 B]                                           <br>
      Get:39 <a class="moz-txt-link-freetext" href="https://esm.ubuntu.com/infra/ubuntu">https://esm.ubuntu.com/infra/ubuntu</a> focal-infra-updates
      InRelease [7,452 B]                                    <br>
      Get:40 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a> focal-updates/main
      amd64 Packages [2,611 kB]   <br>
      Hit:41 <a class="moz-txt-link-freetext" href="http://download.virtualbox.org/virtualbox/debian">http://download.virtualbox.org/virtualbox/debian</a> hirsute
      InRelease         <br>
      Get:42 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a> focal-updates/main i386
      Packages [836 kB]<br>
      Get:43 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a> focal-updates/main
      Translation-en [439 kB]<br>
      Get:44 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a> focal-updates/main
      amd64 DEP-11 Metadata [274 kB]<br>
      Get:45 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a>
      focal-updates/restricted amd64 Packages [1,937 kB]<br>
      Get:46 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a>
      focal-updates/restricted Translation-en [273 kB]<br>
      Get:47 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a> focal-updates/universe
      amd64 Packages [1,067 kB]<br>
      Get:48 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a> focal-updates/universe
      i386 Packages [730 kB]<br>
      Get:49 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a> focal-updates/universe
      amd64 DEP-11 Metadata [410 kB]<br>
      Get:50 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a>
      focal-updates/multiverse amd64 DEP-11 Metadata [944 B]<br>
      Get:51 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a> focal-backports/main
      amd64 DEP-11 Metadata [7,976 B]<br>
      Get:52 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a>
      focal-backports/universe amd64 DEP-11 Metadata [30.5 kB]<br>
      Get:53 <a class="moz-txt-link-freetext" href="http://security.ubuntu.com/ubuntu">http://security.ubuntu.com/ubuntu</a> focal-security/main amd64
      DEP-11 Metadata [59.8 kB]<br>
      Get:54 <a class="moz-txt-link-freetext" href="http://security.ubuntu.com/ubuntu">http://security.ubuntu.com/ubuntu</a> focal-security/universe
      amd64 DEP-11 Metadata [95.4 kB]<br>
      Get:55 <a class="moz-txt-link-freetext" href="http://security.ubuntu.com/ubuntu">http://security.ubuntu.com/ubuntu</a> focal-security/multiverse
      amd64 DEP-11 Metadata [940 B]<br>
      Reading package lists... Done                                     <br>
      E: The repository '<a class="moz-txt-link-freetext" href="http://ppa.launchpad.net/x2go/saimaa/ubuntu">http://ppa.launchpad.net/x2go/saimaa/ubuntu</a>
      focal Release' does not have a Release file.<br>
      N: Updating from such a repository can't be done securely, and is
      therefore disabled by default.<br>
      N: See apt-secure(8) manpage for repository creation and user
      configuration details.<br>
      N: Skipping acquire of configured file
      'non-free/binary-i386/Packages' as repository
      '<a class="moz-txt-link-freetext" href="http://download.virtualbox.org/virtualbox/debian">http://download.virtualbox.org/virtualbox/debian</a> hirsute
      InRelease' doesn't support architecture 'i386'<br>
      N: Skipping acquire of configured file
      'contrib/binary-i386/Packages' as repository
      '<a class="moz-txt-link-freetext" href="http://download.virtualbox.org/virtualbox/debian">http://download.virtualbox.org/virtualbox/debian</a> hirsute
      InRelease' doesn't support architecture 'i386'<br>
      root@noc /var/log/apt # <br>
      ##################<br>
    </p>
    <p>The "sudo apt update" part:<br>
    </p>
    <p>##################<br>
      root@noc /var/log/apt # sudo apt update<br>
      Hit:1 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a> focal InRelease<br>
      Hit:2 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a> focal-updates
InRelease                                                                                                                                              
       <br>
      Hit:3 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a> focal-backports
InRelease                                                                                                                                            
       <br>
      Hit:4 <a class="moz-txt-link-freetext" href="http://mirror.hetzner.de/ubuntu/packages">http://mirror.hetzner.de/ubuntu/packages</a> focal-security
InRelease                                                                                                                                             
       <br>
      Hit:5 <a class="moz-txt-link-freetext" href="http://download.virtualbox.org/virtualbox/debian">http://download.virtualbox.org/virtualbox/debian</a> hirsute
InRelease                                                                                                                                            
       <br>
      Hit:6 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a> focal
InRelease                                                                                                                                                           
       <br>
      Hit:7 <a class="moz-txt-link-freetext" href="http://ppa.launchpad.net/kubuntu-ppa/backports/ubuntu">http://ppa.launchpad.net/kubuntu-ppa/backports/ubuntu</a> focal
InRelease                                                                                                                                         
       <br>
      Ign:8 <a class="moz-txt-link-freetext" href="http://linux.dropbox.com/ubuntu">http://linux.dropbox.com/ubuntu</a> disco
InRelease                                                                                                              
       <br>
      Hit:9 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a> focal-updates
InRelease                                                                                                                       
       <br>
      Hit:10 <a class="moz-txt-link-freetext" href="http://linux.dropbox.com/ubuntu">http://linux.dropbox.com/ubuntu</a> disco
Release                                                                                                                                    
       <br>
      Hit:11 <a class="moz-txt-link-freetext" href="http://de.archive.ubuntu.com/ubuntu">http://de.archive.ubuntu.com/ubuntu</a> focal-backports
InRelease                                                                                                                    
       <br>
      Ign:12 <a class="moz-txt-link-freetext" href="http://ppa.launchpad.net/x2go/saimaa/ubuntu">http://ppa.launchpad.net/x2go/saimaa/ubuntu</a> focal
InRelease                                                                                                                      
       <br>
      Err:13 <a class="moz-txt-link-freetext" href="http://ppa.launchpad.net/x2go/saimaa/ubuntu">http://ppa.launchpad.net/x2go/saimaa/ubuntu</a> focal
      Release                                                                 
       <br>
        404  Not Found [IP: 2620:2d:4000:1::3e 80]<br>
      Hit:14 <a class="moz-txt-link-freetext" href="http://security.ubuntu.com/ubuntu">http://security.ubuntu.com/ubuntu</a> focal-security
      InRelease         <br>
      Hit:15 <a class="moz-txt-link-freetext" href="https://esm.ubuntu.com/infra/ubuntu">https://esm.ubuntu.com/infra/ubuntu</a> focal-infra-security
      InRelease <br>
      Hit:16 <a class="moz-txt-link-freetext" href="https://esm.ubuntu.com/infra/ubuntu">https://esm.ubuntu.com/infra/ubuntu</a> focal-infra-updates
      InRelease<br>
      Reading package lists... Done<br>
      E: The repository '<a class="moz-txt-link-freetext" href="http://ppa.launchpad.net/x2go/saimaa/ubuntu">http://ppa.launchpad.net/x2go/saimaa/ubuntu</a>
      focal Release' does not have a Release file.<br>
      N: Updating from such a repository can't be done securely, and is
      therefore disabled by default.<br>
      N: See apt-secure(8) manpage for repository creation and user
      configuration details.<br>
      N: Skipping acquire of configured file
      'non-free/binary-i386/Packages' as repository
      '<a class="moz-txt-link-freetext" href="http://download.virtualbox.org/virtualbox/debian">http://download.virtualbox.org/virtualbox/debian</a> hirsute
      InRelease' doesn't support architecture 'i386'<br>
      N: Skipping acquire of configured file
      'contrib/binary-i386/Packages' as repository
      '<a class="moz-txt-link-freetext" href="http://download.virtualbox.org/virtualbox/debian">http://download.virtualbox.org/virtualbox/debian</a> hirsute
      InRelease' doesn't support architecture 'i386'<br>
      root@noc /var/log/apt #<br>
      ##################</p>
    <p>In the end:<br>
      <br>
      ##################<br>
      root@noc /var/log/apt # systemctl status x2goserver.service<br>
      ● x2goserver.service - LSB: Start and stop the X2Go daemon<br>
           Loaded: loaded (/etc/init.d/x2goserver; generated)<br>
           Active: failed (Result: exit-code) since Wed 2023-05-31
      13:57:11 CEST; 24h ago<br>
             Docs: <a class="moz-txt-link-freetext" href="man:systemd-sysv-generator(8)">man:systemd-sysv-generator(8)</a><br>
          Process: 2000 ExecStart=/etc/init.d/x2goserver start
      (code=exited, status=127)<br>
      <br>
      May 31 13:57:11 noc systemd[1]: Starting LSB: Start and stop the
      X2Go daemon...<br>
      May 31 13:57:11 noc x2goserver[2000]:  * Cleaning up stale X2Go
      sessions<br>
      May 31 13:57:11 noc x2goserver[2000]: /etc/init.d/x2goserver: 26:
      x2gocleansessions: not found<br>
      May 31 13:57:11 noc systemd[1]: x2goserver.service: Control
      process exited, code=exited, status=127/n/a<br>
      May 31 13:57:11 noc systemd[1]: x2goserver.service: Failed with
      result 'exit-code'.<br>
      May 31 13:57:11 noc systemd[1]: Failed to start LSB: Start and
      stop the X2Go daemon.<br>
      ##################</p>
    <p>And also:</p>
    <p>##################<br>
      root@noc /var/log/apt # sudo apt-get install x2goserver
      x2goserver-xsession<br>
      Reading package lists... Done<br>
      Building dependency tree       <br>
      Reading state information... Done<br>
      You might want to run 'apt --fix-broken install' to correct these.<br>
      The following packages have unmet dependencies:<br>
       libx2go-log-perl : Depends: x2goserver-common (>=
      4.1.0.4-0~1975~ubuntu20.04.1) but 4.1.0.3-5 is to be installed<br>
       libx2go-server-db-perl : Depends: x2goserver-common (>=
      4.1.0.4-0~1975~ubuntu20.04.1) but 4.1.0.3-5 is to be installed<br>
       libx2go-server-perl : Depends: libx2go-log-perl (<
      4.1.0.3-5.1~) but 4.1.0.4-0~1975~ubuntu20.04.1 is to be installed<br>
                             Depends: libx2go-server-db-perl (<
      4.1.0.3-5.1~) but 4.1.0.4-0~1975~ubuntu20.04.1 is to be installed<br>
      E: Unmet dependencies. Try 'apt --fix-broken install' with no
      packages (or specify a solution).<br>
      root@noc /var/log/apt # <br>
      ##################</p>
    <p>So we're still stuck. Any further help would be greatly
      appreciated. Thanks in advance.<br>
    </p>
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